How big is too big ~ Carbs

Joined
May 22, 2004
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522
I had a quick browse back thru the posts .. and I am sure this has been hashed before..

But I am considering endeavouring to adapt two carbs off a R1 Yammy but the venturis are 40mm !

I know RGM Cumbria UK are offering an adaptor and rubber mounts.. but its a big jump from 32 -40 mm ~ plus I then have to consider the ports..

What are the realities of a creating an even greater 'venturi effect" by fitting such a carb ~

(I for one have had a gut full of tinkering with dodgy Amal and SS inserts and blah blah!)
 
Joined
Dec 5, 2003
Messages
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My 600 CBR has really big (I think 38mm) carbs on each cylinder and they are excellent, however the CBR will turn 13,000 rpm and the carbs are CV's.
I think dual 40mm's will be an unhappy experience for the Norton, I doubt that you can get the airflow to get them to work properly. Dual 34's or maybe even 36's might work, but unless your full on racing why bother?

Scooter
 
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